I have UC, which is a IBD and my gastroenterologist says smoking, vaping, eating, however you use cannabis has absolutely nothing to do with it. I didn't read all of these replies, but my condition as well as Crohn's are autoimmune disorders and diet, stress, all the drugs I did in college... have no relation. IBS is not IBD but it can be a precursor. I've been dealing with it(actually, it has been in remission and only has flared up twice) for 8 years. I have a medical card for epilepsy, but UC is another medical condition that has been a part of my treatment regiment. If you haven't, you should probably see a Gastro doc and get a colonoscopy to be certain. They can also advise you about any changes you could make in your ADL's to help keep you from progressing to something more serious. Good luck.